Cheap Mercedes-Benz GLS Differential

The GLS (X166 generation, 2016–2019) covers both those years within the same platform, so a differential from a 2018 car is generally a strong candidate for a 2016 — but fitment is driven by engine code first, then gearbox type, so make sure both vehicles share the same engine code (visible on your V5 or via a VIN check) before proceeding. Confirm with the breaker against your registration to rule out any mid-production ancillary or mounting changes.

The GLS replaced the GL-Class (X166) in 2016, essentially as a rename of the same generation, so mechanical parts including the differential can carry over where the engine code and gearbox type match — however, treat any cross-nameplate swap as unconfirmed until the breaker checks both registrations, as specification changes occurred across that boundary. The engine code on both vehicles is the single most useful detail to provide.

Trim names like 350d and 500 in this case directly reflect different engines and drivetrains — a 350d is a diesel and a 500 is a petrol V8 — so the differential is not interchangeable between them; you must match by engine code and fuel type, not just by GLS badge. Confirm the exact engine code from your V5 and supply it to the breaker so they can source the correct unit.

AMG Line is a cosmetic and styling pack and does not alter the drivetrain, so if both vehicles share the same engine code and gearbox type the differential fitment should be unaffected by the trim difference. You may notice minor ancillary differences in the engine bay between trim levels, so confirm with the breaker against both registrations before purchasing.

The GLS X166 received a facelift in 2019 alongside the introduction of the second-generation X167, so 'pre-facelift' and 'post-facelift' in common usage can refer to different things depending on which generation you own — establish clearly whether your car is an X166 or the newer X167 before searching. Within the X166, changes across its 2016–2019 run may affect differential compatibility, so crossing any production boundary should be confirmed with the breaker against your specific registration and engine code.

The engine code is the most important detail — find it on your V5 registration document or via a VIN decoder — followed by fuel type (diesel or petrol), gearbox type (automatic), and the year of your vehicle. Supplying your full registration allows the breaker to cross-reference everything accurately and is the best way to avoid an incompatible unit.